Flowmaster's Outlaw® Cat-back exhaust system for the 2018 Ford Mustang GT is perfect for the person looking for a very aggressive exhaust tone inside and outside the vehicle, with all of the performance benefits that you would expect from Flowmaster. This easy to bolt-on emissions-legal system for the 5.0L V8 features a pair of 409S stainless steel Outlaw Series mufflers with 3.00 inch stainless steel mandrel bent pipes and scavenger x-pipe. The system finishes off with 4.00 inch carbon fiber tips. This system does not fit models with the Active Performance Exhaust option. Like all Flowmaster® systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, this system includes all necessary parts and hardware for installation.